supported an ndp command suboption to disable IPv6 in the given interface

Obtained from: KAME
Reviewd by: ume, gnn
MFC after: 2 week

1 files changed, 13 insertions, 0 deletions

diff --git a/usr.sbin/ndp/ndp.8 b/usr.sbin/ndp/ndp.8
index ea33646af2d7..4d99527d781f 100644
--- a/usr.sbin/ndp/ndp.8
+++ b/usr.sbin/ndp/ndp.8
@@ -198,6 +198,19 @@ selection, see the
 .Pa IMPLEMENTATION
 file supplied with the KAME kit.
 .It Xo
+.Ic disabled
+.Xc
+Disable IPv6 operation on the interface.
+When disabled, the interface discards any IPv6 packets
+received on or being sent to the interface.
+In the sending case, an error of ENETDOWN will be returned to the
+application.
+This flag is typically set automatically in the kernel as a result of
+a certain failure of Duplicate Address Detection.
+While the flag can be set or cleared by hand with the
+.Nm
+command, it is not generally advisable to modify this flag manually.
+.It Xo
 .Ic basereachable=(number)
 .Xc
 Specify the BaseReachbleTimer on the interface in millisecond.